Date: Thu, 18 Nov 2010 10:04:00 -0800 From: Doug Barton <dougb@FreeBSD.org> To: Aditya Sarawgi <sarawgi.aditya@gmail.com> Cc: fs@freebsd.org Subject: Re: ext2fs now extremely slow Message-ID: <4CE56A90.3020200@FreeBSD.org> In-Reply-To: <20101108174327.GC2066@earth> References: <20100929031825.L683@besplex.bde.org> <20100929084801.M948@besplex.bde.org> <20100929041650.GA1553@aditya> <201009290917.05269.jhb@freebsd.org> <20100929202526.GA1564@aditya> <4CD0A3E8.4080304@FreeBSD.org> <AANLkTi=iTCG4aO-KO_gy7fp_96KcZ_TCyNk5OkLZUHV3@mail.gmail.com> <4CD201AE.3040409@FreeBSD.org> <20101108174327.GC2066@earth>
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On 11/08/2010 09:43, Aditya Sarawgi wrote: > I have attached the patch. Finally got a chance to test it. There was a huge .rej file for _alloc.c, so I regenerated the patch against HEAD: http://people.freebsd.org/~dougb/ext2fs_prealloc-r215457.diff In light testing so far it seems ok, and it is slightly better from a performance standpoint, but still not as fast as 8.1. My test is csup'ing the ports tree without using -s. Admittedly that's a rather non-scientific test in that the network affects it, however I'm on a pretty fast link, and I'm forcing IPv4 just to be safe. This is the use case Times in seconds: 8.1 averages around 300 HEAD pre-patch average around 450 HEAD post-patch average around 370 So a good improvement to be sure, but still a ways to go. Doug -- Nothin' ever doesn't change, but nothin' changes much. -- OK Go Breadth of IT experience, and depth of knowledge in the DNS. Yours for the right price. :) http://SupersetSolutions.com/
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